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2021 GMC Sierra 3500 HD
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Lifetime Replacement
2021 GMC Sierra 3500 HD

2021 GMC Sierra 3500 HD Torsion Keys

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Torsion Key - Sold individually
MaxTrac®
Torsion Key - Sold individually
Part Number: MAS841813
Guaranteed to Fit
$126.33
Vehicle Fitment
  • 2021 GMC Sierra 3500 HD SLT 8 Cyl 6.6L 1in.-3in. Lift Torsion Keys With Shock Ext; Except Wheels Wider Than 9in. Or Wheels With Less Than 4.5in. Backspacing
  • 2021 GMC Sierra 3500 HD SLE 8 Cyl 6.6L 1in.-3in. Lift Torsion Keys With Shock Ext; Except Wheels Wider Than 9in. Or Wheels With Less Than 4.5in. Backspacing
  • 2021 GMC Sierra 3500 HD Denali 8 Cyl 6.6L 1in.-3in. Lift Torsion Keys With Shock Ext; Except Wheels Wider Than 9in. Or Wheels With Less Than 4.5in. Backspacing
  • 2021 GMC Sierra 3500 HD AT4 8 Cyl 6.6L 1in.-3in. Lift Torsion Keys With Shock Ext; Except Wheels Wider Than 9in. Or Wheels With Less Than 4.5in. Backspacing
  • 2021 GMC Sierra 3500 HD Base 8 Cyl 6.6L 1in.-3in. Lift Torsion Keys With Shock Ext; Except Wheels Wider Than 9in. Or Wheels With Less Than 4.5in. Backspacing
Product Details
Prop 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Quantity Sold : Sold individuallyWarranty : Lifetime MaxTrac limited warranty
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Helpful Automotive Resources

What is a Torsion Key Lift?
What is a Torsion Key Lift? Pro Tip: Most vehicles don’t have torsion bars. They’re most common on four-wheel drive pickups because with the front drive axles passing through the spot where coil springs usually go, a different type of spring is necessary.
Torsion Bars vs. Coil Springs vs. Leaf Springs: Suspension Spring Types Explained
Torsion Bars vs. Coil Springs vs. Leaf Springs: Suspension Spring Types ExplainedAll suspension springs also have a spring rate, which is the amount of force necessary to compress the spring by an inch. Springs with spring rates of 250 lb/in will exert 200 lbs of force back if you compress them by an inch. Higher spring rates reduce the vehicle’s body